Where do brown diamonds come from?

15
Karelle Rutherford asked a question: Where do brown diamonds come from?
Asked By: Karelle Rutherford
Date created: Mon, Jun 7, 2021 7:46 PM
Date updated: Sun, Aug 7, 2022 3:58 PM

Content

Top best answers to the question «Where do brown diamonds come from»

Where do Chocolate Diamonds® come from? Apart from several brown, caramel and champagne-colored diamond mining sites in Brazil, Angola, the Congo and Borneo, most brown diamonds and other similarly-colored stones originate from the Argyle Diamond Mine located in Northwestern Australia.

14 other answers

Brown diamonds come from the earth just like all other diamonds. Brown diamonds come from every mine in the world, and the most profitable mine that produces them is called the Argyle mine in Australia. Notable brown diamonds, however have come from Brazil and from Africa.

Notable brown diamonds The Golden Jubilee Diamond is the largest cut diamond in the world. It was found in 1985 as a rough stone of 755.5... The Earth Star Diamond was found at another South African mine of De Beers, the Jagersfontein Mine on May 16, 1967. The... The Star of the South (the original ...

To source their Chocolate Diamonds, Le Vian choose “less than 5%” of all brown diamonds that are produced by the Argyle Mine in Australia. Specifically, they select brown diamonds that have a rating of between C4 and C7 on the Argyle Mine color scale. In short, these are diamonds that are rated from medium champagne to cognac in color.

Many brown diamonds are thought to derive their brown color from being subjected to stress during their history in the Earth. This stress deforms the diamond crystal lattice, which produces a texture known as "graining" within the diamond crystal.

A brown diamond also receives a large part of its unique color from the light that was absorbed through structural defects in the stone's crystal lattice. 5.Where are brown diamonds mined? Brown diamonds are found all around the world, including the famous Argyle mine in Australia and in South Africa.

Diamonds mined during the 20th-21st century civil wars in Angola, Ivory Coast, Sierra Leone, Liberia, Guinea, and Guinea Bissau have been given the label. The term conflict resource refers to analogous situations involving other natural resources.

All are brown diamonds by definition. When the GIA grades a colored diamond the color description is often composed by two and even three colors. A main color and supporting secondary hues. When you read the GIA certificate the main color is the last one that is mentioned in the color description.

Jewellers diamonds in groups of similar colors. These from the National Museum of Natural History are a medium brown color. The 296 gems of the Aurora Pyramid of Hope as exhibited in the Natural History Museum in London under natural light.

In the case of brown diamonds (and in them the specific shade referred as Chocolate), they are found mainly in Australia (Argyle), Angola, Borneo, Brazil and the Congo. According to Le-Vian, they source their brown diamonds from the Argyle Diamond Mine .

However, while the fame of the mine comes from the rarest colors, most forget that the mine extracts notable portion of the world's champagne brown diamonds. Borneo has mainly brown and yellow diamonds but in rare occasions pink, blue or green diamonds can also be found there. Brazil is quite interesting. Most of the colored diamonds that are found there are yellow and brown. These diamonds are also known to have strong fluorescence which gives them a greenish appeal.

Diamonds can be found in shallow alluvial deposits where the crystals settle after being transported away from the kimberlite pipes by geologic activity and rivers. Around 30 percent of the diamonds mined worldwide are gem-quality. Prior to the 18th century, most diamonds were found in India.

Rio Tinto opened the Argyle mine in Australia, in which 80% of the diamonds mined were brown in color. DeBeers followed this trend and in 1996 introduced massive number of brown diamonds to the market. These brown diamonds were previously only used for industrial purposes.

A brown diamond also receives a large part of its unique color from the light that was absorbed through structural defects in the stone's crystal lattice. 5.Where are brown diamonds mined? Brown diamonds are found all around the world, including the famous Argyle mine in Australia and in South Africa.

However, while the fame of the mine comes from the rarest colors, most forget that the mine extracts notable portion of the world's champagne brown diamonds. Borneo has mainly brown and yellow diamonds but in rare occasions pink, blue or green diamonds can also be found there. Brazil is quite interesting. Most of the colored diamonds that are found there are yellow and brown. These diamonds are also known to have strong fluorescence which gives them a greenish appeal.

Your Answer